可程控精密直流参考源的设计

Design of programmable precision DC reference source

介绍了单片低功耗,具有片内自校准功能的20bit串行DAC1220数/模转换器在双极性DC参考源中的设计应用,并给出了与AT89C52系列单片机接口电路。

This article introduced the design of a programmable dual DC reference source, which is based on a 20bit serial D/A chip, with the characteristics of low power consumption and on chip self calibration function. The interface circuit ＂between DAC1220 and AT89C52 was presented.